Te c h n i q u e s f o r

STRESS-FREE SOFTWARE RELEASES

Rouan Wilsenach @rouanw

rouanw.github.io thoughtworks.com

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SIGNS YOU’RE !

DOING IT WRONGYour releases are more stressful than they should be

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Stressed out?

https://www.flickr.com/photos/giuseppesavo/6153578409

5https://www.flickr.com/photos/dingopup/3800498100

After hours

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Manual steps

https://www.flickr.com/photos/clement127/15943249419

7https://www.flickr.com/photos/jdhancock/5827228535

The deployment guy

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Hope it works…

https://www.flickr.com/photos/daniel_gies/5052886953

9https://www.flickr.com/photos/sweetone/3232998358

Users are impacted

10https://www.flickr.com/photos/cgranycome/14007087703

Infrequent

11https://www.flickr.com/photos/tambako/6143645724

Releases should be a non-event

HERE’S HOWTechniques to help you sleep

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THE GAUNTLETAutomated testing and a deployment pipeline

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The test pyramid

http://martinfowler.com/bliki/TestPyramid.html

testing = checking + exploring !- Elisabeth Hendrickson

15http://testobsessed.com

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Deployment pipeline

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Package once

AUTOMATED !

DEPLOYMENTSOne click. Deployed.

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When humans do repetitive tasks on behalf of computers, they all get together late at night and laugh !- Neal Ford

19nealford.com

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One-click deployment

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Production-like environments

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Start with a list

INFRASTRUCTURE !

AS CODEIt’s like baking a cake, only you’re baking a server

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Automate a home for your app

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!

Treat your servers like cattle, not pets

I too consider myself an artist and a craftsman of server building. With each click of a mouse, I create a work of art. !

- Disenfranchised systems administrator

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http://tatiyants.com/devops-is-ruining-my-craft/

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Intentionality Time to recovery

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Phoenix servers

BLUE - GREEN !

RELEASESZero-downtime releases.

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34http://martinfowler.com/bliki/BlueGreenDeployment.html

DEVOPS CULTURESUGSA Jo’burg - November 11 http://martinfowler.com/bliki/DevOpsCulture.html

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36https://www.flickr.com/photos/tambako/6143645724

Automated tests & deployment pipeline

Automate deployment

Infrastructure as code

Blue-green releases

Te c h n i q u e s f o r

STRESS-FREE SOFTWARE RELEASES

Rouan Wilsenach @rouanw

rouanw.github.io thoughtworks.com